SN74LVC2G157DCUT集成电路（IC）的信号开关多路复用器解码器规格书PDF中文资料

SN74LVC2G157DCUT属于集成电路（IC）的信号开关多路复用器解码器。由德州仪器制造生产的SN74LVC2G157DCUT信号开关，多路复用器，解码器逻辑型信号开关、多路复用器和编码器 IC 可用于对以数字格式表示数据的电信号进行路由和选择。这些器件与设计用于模拟信号的类似产品有所不同，它们保留的信息表示为两个电状态之一，而不是两个外部界限内的无穷变化量。

1 Features

1• Available in the Texas Instruments

NanoFree™ package

• Supports 5-V VCC operation

• Inputs accept voltages to 5.5 V

• Max tpd of 6 ns at 3.3 V

• Low power consumption, 10-μA Maximum ICC

• ±24-mA Output drive at 3.3 V

• Typical VOLP (Output ground bounce)

<0.8 V at VCC = 3.3 V, TA = 25°C

• Typical VOHV (Output VOH undershoot)

>2 V at VCC = 3.3 V, TA = 25°C

• Ioff Supports live insertion, partial-power-down

mode, and back-drive protection

• Can be used as a down translator to translate

inputs from a maximum of 5.5 V down

to the VCC Level

• Latch-up performance exceeds 100 mA per

JESD 78, Class II

• ESD Protection exceeds JESD 22

– 2000-V Human body model (A114-A)

– 1000-V Charged-device model (C101)

2 Applications

• Barcode scanner

• Cable solutions

• E-books

• Embedded PC

• Field transmitter: temperature or pressure sensors

• Fingerprint biometrics

• HVAC: Heating, ventilating, and air conditioning

• Network-attached storage (NAS)

• Server motherboard and PSU

• Software defined radio (SDR)

• TV: High definition (HDTV), LCD, and digital

• Video communications systems

• Wireless data access cards, headsets, keyboards,

mice, and LAN cards

3 Description

This single 2-line to 1-line data selector multiplexer is

designed for 1.65-V to 5.5-V VCC operation.

The SN74LVC2G157 device features a common

strobe (G) input. When the strobe is high, Y is low

and Y is high. When the strobe is low, a single bit is

selected from one of two sources and is routed to the

outputs. The device provides true and complementary

data.

NanoFree™ package technology is a major

breakthrough in IC packaging concepts, using the die

as the package.

This device is fully specified for partial-power-down

applications using Ioff. The Ioff circuitry disables the

outputs, preventing damaging current backflow

through the device when it is powered down.